A plastic spraying machine and a plastic spraying line using the plastic spraying machine

Abstract

The invention relates to the field of spraying, and discloses a spraying machine and a spraying assembly line adopting the spraying machine. The spraying machine comprises spraying guns, molding powder pipes and molding powder boxes. The molding powder pipes comprise hoses, head pipes and tail pipes, wherein the head pipes and the tail pipes are connected to the spraying guns and the molding powder boxes correspondingly. Inserting connecting holes for inserting connecting the tail pipes are formed in the molding powder boxes, fixing pipes coaxially extending outward are arranged on the moldingpowder boxes and located at the inserting connecting holes, inserting connecting grooves are formed in the tail pipes, embedding grooves corresponding to the inserting connecting grooves are formed in the inner sides of the fixing pipes, and embedding blocks which are partly embedded in the inserting connecting grooves are slidably arranged in the embedding grooves; and supporting springs for pushing the embedding blocks are arranged in the embedding grooves, pulling pieces are connected to the ends, facing the supporting springs, of the embedding blocks, and the ends, away from the embeddingblocks, of the pulling pieces extend to the outer sides of the fixing pipes. The spraying machine has the effects that a rapid inserting connecting method between the molding powder pipes and the molding powder boxes is provided, detachable installing structure between the molding powder pipes and the molding powder boxes is realized, the molding powder pipes and the spraying guns can be taken down conveniently and used after being cleaned.

Description

technical field [0001] The invention relates to the field of plastic spraying, in particular to a plastic spraying machine and a plastic spraying assembly line using the plastic spraying machine. Background technique [0002] Plastic spraying is to charge the plastic powder through high-voltage electrostatic equipment. Under the action of the electric field, the paint is sprayed onto the surface of the workpiece, and the powder will be evenly adsorbed on the surface of the workpiece to form a powder coating, and the powder coating passes through After high-temperature baking and leveling and curing, the plastic particles will melt into a layer of dense final protective coating with different effects, which will firmly adhere to the surface of the workpiece. [0003] The existing notification number is the Chinese patent of CN205966292U, which discloses a plastic spraying system spray structure, including a spray room and a spray gun, a frame is arranged outside the spray roo...

AI Technical Summary

Problems solved by technology

[0004] As in the above-mentioned disclosed technology, different products need to be sprayed on the plastic spraying line, so the powders required by different products are not the same. Usually, when changing the powder spraying, there will be a powder remaining in the spray head. One kind of powder affects the spraying effect, and it is necessary to spray new powder for a period of time before spraying, so that the new powder can completely replace the previous powder, but due to factors such as the speed of empty spraying, the structure of the spray gun and the length of the plastic powder tube, etc., As a result, there is no exact regulation on the time of empty spraying. It needs to be judged by the experience of the operator. This method is easy to cause waste of powder. Therefore, different plastic powder boxes are used to connect a set of plastic powder tubes and spray guns, but in this way It will cause the increase of equipment cost in plastic spraying operation and the problem of taking up more storage space

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